From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail172.messagelabs.com (mail172.messagelabs.com [216.82.254.3]) by kanga.kvack.org (Postfix) with SMTP id 236AC6B003D for ; Fri, 8 May 2009 10:25:29 -0400 (EDT) Received: from localhost (smtp.ultrahosting.com [127.0.0.1]) by smtp.ultrahosting.com (Postfix) with ESMTP id 12E3182C540 for ; Fri, 8 May 2009 10:38:00 -0400 (EDT) Received: from smtp.ultrahosting.com ([74.213.175.254]) by localhost (smtp.ultrahosting.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id DI5mXzxYT7sG for ; Fri, 8 May 2009 10:38:00 -0400 (EDT) Received: from qirst.com (unknown [74.213.171.31]) by smtp.ultrahosting.com (Postfix) with ESMTP id 362DE82C54D for ; Fri, 8 May 2009 10:37:47 -0400 (EDT) Date: Fri, 8 May 2009 10:25:26 -0400 (EDT) From: Christoph Lameter Subject: Re: [PATCH -mm] vmscan: make mapped executable pages the first class citizen In-Reply-To: <20090508183427.f313770f.minchan.kim@barrios-desktop> Message-ID: References: <20090430215034.4748e615@riellaptop.surriel.com> <20090430195439.e02edc26.akpm@linux-foundation.org> <49FB01C1.6050204@redhat.com> <20090501123541.7983a8ae.akpm@linux-foundation.org> <20090503031539.GC5702@localhost> <1241432635.7620.4732.camel@twins> <20090507121101.GB20934@localhost> <20090507151039.GA2413@cmpxchg.org> <20090508030209.GA8892@localhost> <20090508163042.ba4ef116.minchan.kim@barrios-desktop> <20090508080921.GA25411@localhost> <20090508183427.f313770f.minchan.kim@barrios-desktop> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org To: Minchan Kim Cc: Wu Fengguang , Johannes Weiner , Andrew Morton , Peter Zijlstra , Rik van Riel , "linux-kernel@vger.kernel.org" , "tytso@mit.edu" , "linux-mm@kvack.org" , Elladan , Nick Piggin , KOSAKI Motohiro List-ID: On Fri, 8 May 2009, Minchan Kim wrote: > > > Why did you said that "The page_referenced() path will only cover the ""_text_"" section" ? > > > Could you elaborate please ? > > > > I was under the wild assumption that only the _text_ section will be > > PROT_EXEC mapped. No? > > Yes. I support your idea. Why do PROT_EXEC mapped segments deserve special treatment? What about the other memory segments of the process? Essentials like stack, heap and data segments of the libraries? -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org